19906220

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3517}}^1$

素因数の和:3809

約数の個数: 24

約数和(自身を含む): 41962704

約数和(自身を除く): 22056484

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3517, 5660, 7034, 14068, 17585, 35170, 70340, 995311, 1990622, 3981244, 4976555, 9953110, 19906220]

約数ペア:

[(1, 19906220), (2, 9953110), (4, 4976555), (5, 3981244), (10, 1990622), (20, 995311), (283, 70340), (566, 35170), (1132, 17585), (1415, 14068), (2830, 7034), (3517, 5660)]